Line data Source code
1 : /*
2 : * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 : * (Royal Institute of Technology, Stockholm, Sweden).
4 : * All rights reserved.
5 : *
6 : * Redistribution and use in source and binary forms, with or without
7 : * modification, are permitted provided that the following conditions
8 : * are met:
9 : *
10 : * 1. Redistributions of source code must retain the above copyright
11 : * notice, this list of conditions and the following disclaimer.
12 : *
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : *
17 : * 3. Neither the name of the Institute nor the names of its contributors
18 : * may be used to endorse or promote products derived from this software
19 : * without specific prior written permission.
20 : *
21 : * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 : * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 : * SUCH DAMAGE.
32 : */
33 :
34 : #include "gen_locl.h"
35 :
36 : RCSID("$Id$");
37 :
38 : static void
39 4122 : free_primitive (const char *typename, const char *name)
40 : {
41 4580 : fprintf (codefile, "der_free_%s(%s);\n", typename, name);
42 4122 : }
43 :
44 : static void
45 38684 : free_type (const char *name, const Type *t, int preserve)
46 : {
47 38684 : switch (t->type) {
48 8778 : case TType:
49 : #if 0
50 : free_type (name, t->symbol->type, preserve);
51 : #endif
52 8778 : fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name);
53 8316 : break;
54 1672 : case TInteger:
55 1672 : if (t->range == NULL && t->members == NULL) {
56 684 : free_primitive ("heim_integer", name);
57 684 : break;
58 : }
59 : case TBoolean:
60 : case TEnumerated :
61 : case TNull:
62 : case TGeneralizedTime:
63 : case TUTCTime:
64 1224 : break;
65 418 : case TBitString:
66 418 : if (ASN1_TAILQ_EMPTY(t->members))
67 216 : free_primitive("bit_string", name);
68 396 : break;
69 1824 : case TOctetString:
70 1728 : free_primitive ("octet_string", name);
71 1728 : break;
72 3553 : case TChoice:
73 : case TSet:
74 : case TSequence: {
75 3553 : Member *m, *have_ellipsis = NULL;
76 :
77 3553 : if (t->members == NULL)
78 0 : break;
79 :
80 3553 : if ((t->type == TSequence || t->type == TChoice) && preserve)
81 114 : fprintf(codefile, "der_free_octet_string(&data->_save);\n");
82 :
83 3553 : if(t->type == TChoice)
84 380 : fprintf(codefile, "switch((%s)->element) {\n", name);
85 :
86 16739 : ASN1_TAILQ_FOREACH(m, t->members, members) {
87 : char *s;
88 :
89 13186 : if (m->ellipsis){
90 608 : have_ellipsis = m;
91 608 : continue;
92 : }
93 :
94 12578 : if(t->type == TChoice)
95 1159 : fprintf(codefile, "case %s:\n", m->label);
96 38396 : if (asprintf (&s, "%s(%s)->%s%s",
97 12578 : m->optional ? "" : "&", name,
98 25156 : t->type == TChoice ? "u." : "", m->gen_name) < 0 || s == NULL)
99 0 : errx(1, "malloc");
100 12578 : if(m->optional)
101 4389 : fprintf(codefile, "if(%s) {\n", s);
102 12578 : free_type (s, m->type, FALSE);
103 12578 : if(m->optional)
104 4389 : fprintf(codefile,
105 : "free(%s);\n"
106 : "%s = NULL;\n"
107 : "}\n",s, s);
108 12578 : free (s);
109 12578 : if(t->type == TChoice)
110 1159 : fprintf(codefile, "break;\n");
111 : }
112 :
113 3553 : if(t->type == TChoice) {
114 380 : if (have_ellipsis)
115 95 : fprintf(codefile,
116 : "case %s:\n"
117 : "der_free_octet_string(&(%s)->u.%s);\n"
118 : "break;",
119 : have_ellipsis->label,
120 : name, have_ellipsis->gen_name);
121 380 : fprintf(codefile, "}\n");
122 : }
123 3366 : break;
124 : }
125 1368 : case TSetOf:
126 : case TSequenceOf: {
127 : char *n;
128 :
129 1440 : fprintf (codefile, "while((%s)->len){\n", name);
130 1368 : if (asprintf (&n, "&(%s)->val[(%s)->len-1]", name, name) < 0 || n == NULL)
131 0 : errx(1, "malloc");
132 1368 : free_type(n, t->subtype, FALSE);
133 1440 : fprintf(codefile,
134 : "(%s)->len--;\n"
135 : "}\n",
136 : name);
137 1440 : fprintf(codefile,
138 : "free((%s)->val);\n"
139 : "(%s)->val = NULL;\n", name, name);
140 1368 : free(n);
141 1296 : break;
142 : }
143 266 : case TGeneralString:
144 252 : free_primitive ("general_string", name);
145 252 : break;
146 19 : case TTeletexString:
147 18 : free_primitive ("general_string", name);
148 18 : break;
149 760 : case TUTF8String:
150 720 : free_primitive ("utf8string", name);
151 720 : break;
152 19 : case TPrintableString:
153 18 : free_primitive ("printable_string", name);
154 18 : break;
155 76 : case TIA5String:
156 72 : free_primitive ("ia5_string", name);
157 72 : break;
158 38 : case TBMPString:
159 36 : free_primitive ("bmp_string", name);
160 36 : break;
161 19 : case TUniversalString:
162 18 : free_primitive ("universal_string", name);
163 18 : break;
164 19 : case TVisibleString:
165 18 : free_primitive ("visible_string", name);
166 18 : break;
167 19152 : case TTag:
168 19152 : free_type (name, t->subtype, preserve);
169 19152 : break;
170 361 : case TOID :
171 342 : free_primitive ("oid", name);
172 342 : break;
173 0 : default :
174 0 : abort ();
175 : }
176 36648 : }
177 :
178 : void
179 5586 : generate_type_free (const Symbol *s)
180 : {
181 5586 : int preserve = preserve_type(s->name) ? TRUE : FALSE;
182 :
183 5880 : fprintf (codefile, "void ASN1CALL\n"
184 : "free_%s(%s *data)\n"
185 : "{\n",
186 : s->gen_name, s->gen_name);
187 :
188 5586 : free_type ("data", s->type, preserve);
189 5880 : fprintf (codefile, "}\n\n");
190 5586 : }
191 :
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